//
//  ZincTypeInstExpressionArray.cs
//
//  Author:
//       Willem Van Onsem <vanonsem.willem@gmail.com>
//
//  Copyright (c) 2013 Willem Van Onsem
//
//  This program is free software: you can redistribute it and/or modify
//  it under the terms of the GNU General Public License as published by
//  the Free Software Foundation, either version 3 of the License, or
//  (at your option) any later version.
//
//  This program is distributed in the hope that it will be useful,
//  but WITHOUT ANY WARRANTY; without even the implied warranty of
//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//  GNU General Public License for more details.
//
//  You should have received a copy of the GNU General Public License
//  along with this program.  If not, see <http://www.gnu.org/licenses/>.
using System.Linq;
using System.Collections.Generic;
using ZincOxide.MiniZinc.Boxes;
using ZincOxide.Utils;

namespace ZincOxide.MiniZinc.Structures {

    public class ZincTypeInstArrayExpression : ZincTieTiesBoxBase, IZincType {

        public IZincTypeInstExpression OfType {
            get {
                return this.TypeInstExpression;
            }
        }

        public IList<IZincTypeInstExpression> IndexTypes {
            get {
                return this.TypeInstExpressions;
            }
        }

        #region IFinite implementation
        public bool Finite {
            get {
                return (this.TypeInstExpression.Finite && this.TypeInstExpressions.All (x => x.Finite));
            }
        }
        #endregion

        #region IZincType implementation
        public bool Compounded {
            get {
                return true;
            }
        }

        public ZincScalar ScalarType {
            get {
                //TODO
                return ZincScalar.Bool;
                //return this.TypeInstExpression.ScalarType;
            }
        }
        #endregion

        public ZincTypeInstArrayExpression (IZincTypeInstExpression oftype, IZincTypeInstExpression atta, IZincTypeInstExpression attb) : base(oftype,new IZincTypeInstExpression[] {atta,attb}) {
        }

        public ZincTypeInstArrayExpression (IZincTypeInstExpression oftype, IEnumerable<IZincTypeInstExpression> attributes) : base(oftype,attributes) {
        }

        public ZincTypeInstArrayExpression (IZincTypeInstExpression oftype, params IZincTypeInstExpression[] attributes) : base(oftype,attributes) {
        }

        public override string ToString () {
            return string.Format ("array [ {0} ] of {1}", string.Join (" , ", this.TypeInstExpressions), this.TypeInstExpression);
        }

        #region IZincType implementation
        public bool IsSubType (IZincType type) {
            if (type != null && type is ZincTypeInstArrayExpression) {
                ZincTypeInstArrayExpression zta = (ZincTypeInstArrayExpression)type;
                return (zta.OfType.IsSubType (zta) && this.IndexTypes.All (zta.IndexTypes, (x,y) => x.IsSubType (y)));
            } else {
                return false;
            }
        }
        #endregion


    }

}